Rachel Riley has been temporarily replaced on Countdown by a tattooed YouTube mathematician who teaches equations in his underwear. Dr Tom Crawford, known for his Tom Rocks Maths channel on the ...

Rachel Riley has told how she was once groped by a Countdown fan in front of his wife, before the couple were banned from the show. Maths whizz Riley, 35, spoke about the unpleasant moment filming the ...

Rachel first joined Countdown in 2009, taking over from Carol Vorderman RACHEL Riley has been temporarily replaced on Countdown – by a YouTube star. The Channel 4 words and numbers show will undergo ...

Rachel Riley has issued a playful warning to Countdown producers should they ever want her to leave the show. The 39-year-old mathematician is currently on a short break from the programme to focus on ...

Rachel Riley was left open-mouthed as a VERY rude word was spelt out on Countdown. The Channel 4 show's presenter was left gobsmacked to discover the word she spelt out on the show. Contestant Mike ...